| 连续波DF化学激光器的数值模拟研究——不同燃料和稀释剂的性能差异 |
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| 引用本文： | 华卫红,姜宗福,赵伊君. 连续波DF化学激光器的数值模拟研究——不同燃料和稀释剂的性能差异[J]. 中国激光, 1998, 25(3): 197-204 |
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| 作者姓名： | 华卫红 姜宗福 赵伊君 |
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| 作者单位： | 国防科技大学应用物理系 |
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| 摘 要： | 采用有限差分技术和压缩比例计算方法，对分别以Ｈ２和Ｃ２Ｈ４作燃料、以Ｈｅ和Ｎ２作稀释剂的燃烧驱动连续波ＤＦ激光器进行了数值模拟，给出了ＤＦ化学激光器燃烧室的平衡化学组分、光腔内平均小信号增益沿流场分布、激射谱线的强度分布、激光器功率和效率。计算结果表明：以Ｃ２Ｈ４作燃料、以Ｈｅ作稀释剂的ＤＦ化学激光器具有较长的可调节激活区，激光器的化学效率高，并且其激射谱线的强度分布更为集中
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| 关 键 词： | 连续波DF激光器，数值模拟，小信号增益，激活区 |
| 收稿时间： | 1996-11-25 |
Numerical Simulation of CW DF Chemical Lasers ——Performance of Different Fuels and Diluents |
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| Hua Weihong Jiang Zongfu Zhao Yijun. Numerical Simulation of CW DF Chemical Lasers ——Performance of Different Fuels and Diluents[J]. Chinese Journal of Lasers, 1998, 25(3): 197-204 |
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| Authors: | Hua Weihong Jiang Zongfu Zhao Yijun |
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| Abstract: | Finite difference technology and compressible scaling method (CSM) are used to the simulation of the combustion driven CW DF chemical lasers. Different fuels (H 2 and C 2H 4) and different diluents (He and N 2) are calculated. The components of mixing gas in the combustor, small signal gain, line intensity distribution of optical cavity, output power and chemical efficiency of lasing are given. The results showed that: the lasing zone of the DF chemical laser is longer and much easy to adjust when C 2H 4 is used as fuel and He as diluent, the chemical efficiency is higher, and the line intensity distribution is more converged. |
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| Keywords: | CW DF chemical laser numerical simulation combustor lasing zone |
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